Fire box



1.629012 May 1927' H. 5. TRIMBLE FIRE BOX Filed Aug. 5, 1925 2Sheets-Sheet 1' Isa i w i i anuentoz jfezry 6 TnZ'mbZe,

attorney I rfi ine 6 s 60mg; QM.

May 17. 1927. 1,629,012

H. G. TRIMBLE FIRE BOX Filed Aug. 5, 1925 2 Sheets-Sheet. 2

Henry G. fnl'mEle,

Wiinbs y a? 81% w 01 Fox? n @21 1 6mm", I

F'atented May 17,

unites stares RENE? o. 'IB-IMBLE, or KANSAS our, Mrs-sonar.

FIRE Box.

Application filed August 3, 192 Serial No. 4?,91'1.

My invention relates to ire-boxes for in fireplaces of the typeassociated chimneys and inanteis. and one object provide a structure ofthis character sisting' of sections which can he install cost.

A further objectto provide i. d. structure of this character which canreadily installed without the aid oi ski workmen and is of such shapeand prop tions as to insure the esra iie of the smoke. gases and otherproducts ot' combustion to the chimney instead of into the room (hrtaining the fireplace as frequently occurs where the fire-box is builtof brick nil iniproperly shaped and proportioned.

In order that the invention may be fully understood, reference will nowhe had to the accompanying drawings. in which:

Fig. l is a front elevation of the tir -lair.

Fin. 2 is a "ertical central section on line Q' -2m"- Fig. 1.

3 is a plan View of the fireho".

p a horizontal section on lire t ot Fig. 1.

In carrying out the invention, I employ a base 2 which tapers towardsits rear inar grin and is provided adjacent to its side margins withgrooves 4 to receive the lower ends of two side wall slabs 6. which areprovided at. their forward upper corners with oti'sets 8 in which alintel it! is seated. The base 2 has an opening 5 normally clo ed by apivotal id 7 and through which ashes ac cumulafing on said base 2 may bedischarged into an underlyingash pit with which most cellars areprovided.

The lintel 10 spans the upper forward portion of the fire-b0); and isprovided at its under side with rearwardlv conver c in; grooves 12 toreceive the. upper forward portions of the margins of the side wallslabs t. A longitudinal recess 13 is provided in the rear portion of thelintel 10 for directing. smoke to the chimney (not shown) instead ofpermitting it to escape into the room containing the fire-box.

The rear portion of the fire-box is closed by a back wall consisting ofslabs l4 and 16. which latter slopes forwardly towards its ug'ipermargin and is seated at its lower inarginnpon the slab 14. The slab 14-is seated in a groove 18 formed in the rear portion f the slab 2 andCommunicating with the rearwardly converging grooves 4. T he back wallslabs 14; and 16 are firmly secured to the car margins of the side wallslabs -al le means such as stud bolts :20

" respectively.

covered by the lintel 10 and a hood 24 which latter is curved upwardlyand rearwardly and if provideo at its .rearwardly convergdes withn'iarginal flanges 26 which 5. upon the upper margins of the side wall.i iaos 6 to which it is secured by suitable means such as stud bolts28. The front margin of the hood 2% is seated in a rec ss 30 extendinglongitudinally of the rear upper portion of the lintel 10.

The rca r portion of the hood 21 has a fine opening for the escape ofthe products (.OZ'IllJ'iESiiOD and which is controlled by a .inpcr 32rockably mounted in a groove 34 the upper margin of the hack slab 16. .edan'ipcr 32- is controlled by a pivotally connected ratchet bar 36 whichmay he reached from the inner front portion of the liiQ-l)().. Theratchet bar 36 is adapted to he held at any point of its adjustment by aU-shaped bolt 38 secured to the upper portion of the hood 24.

in practice the fire-boX can be readily set up by unskilled workmen. thechief care being to get the base 2 properly positioned. The .0. wallslabs 6 are then placed in position. the grooves at acting as guides forproper placement of said slabs (3. The lintel 10 is then seated in theoffsets 8 and its grooved portions 12 coact with the grooved portions 4of the base 2 in firmly holding the side slabs 6 in upright position.The back wall slabs l4 and 1b are next placed in position. after whichassembly of the tirebox is completed by placing the hood 2% in place.After the fire-box has been assem' bled above described it may bereinforced by laying one or more courses of brick or stone against theouter surface of the side wall slabs 6 and the rear wall. slabs 14 and16.

Preferably. all excepting the metal parts of the fire-box areconstructed of fire clay which can be readily molded into shape while ina plastic condition and then burned in kiln.

From the foregoing description it is apparent that l. have provided afire-box em bod nc the advantages herein shown and de .JQtl. and while Ihave shown the preierred QlTibOdimGUt of the invention 1 reserve theright to such modifications and L hanges in the conslru lion,combination and :n'inngei'nent of parts as properly fall within thespirit and scope of the invention as claimed.

Having l'hns (lPSFl'l Ql'l my invent-ion. \Vlldll Claim Zlflll (lOSll'Pto secure by liellelis Patent, is:

A lii'P-lmx cunfiifiing of a have a rear wall mm! upon said base andhaving :in upper fonvznvlly sloping portinn, side walls seated upon saidbase and having uli'bcts in their upper m'wai'd POIUOHS, a li'n'telseated in said olfsets and having a longitudinal recess in ils rearportion. an upwardly and rearwnully ('IUVGd hood resting at its lnnvni'dpm-tinn upon said lintel and having its rear nun-gin spaced above theupper margin of the war wall (0 leave an opening, and marginal flangeson said linlel which i'esl upon tin sicle walls of the lire box.

In testimony whereof I nlfix my signature,

HENRY G. TRIMBLE.

